Does anyone know why the shutter sound of the camera is so inconsistent! Without the lens on the body in manual mode the shutter sounds like most camera hear the shutter when button pressed! However when putting on the lens the camera decides to have some crazy inconsistent shutter sounds, which even at fast speeds 1/500 sounds like the a shot taken at 1/4 second! The sound is like a double shutter sound, but then if I zoom out on the kit shooting at slower aperture the camera then at 1/250 sounds fast, then go wide angle again the double shutter sound! Whats up with that as I have heard the GX1 and the GF3 make similar sounds when testing them in store, whilst the Oly's didn't make that sound!